US20090101229A1 - Vapor recovery detection means - Google Patents
Vapor recovery detection means Download PDFInfo
- Publication number
- US20090101229A1 US20090101229A1 US12/252,535 US25253508A US2009101229A1 US 20090101229 A1 US20090101229 A1 US 20090101229A1 US 25253508 A US25253508 A US 25253508A US 2009101229 A1 US2009101229 A1 US 2009101229A1
- Authority
- US
- United States
- Prior art keywords
- vapor
- housing
- fuel
- recovery system
- vapor recovery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 47
- 238000001514 detection method Methods 0.000 title 1
- 239000000446 fuel Substances 0.000 claims abstract description 68
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
- B67D7/0476—Vapour recovery systems
- B67D7/0478—Vapour recovery systems constructional features or components
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
- G01P13/0013—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using a solid body which is shifted by the action of the fluid
- G01P13/002—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using a solid body which is shifted by the action of the fluid with electrical coupling to the indicating devices
Definitions
- the present invention relates to a vapor recovery system for recovering fuel vapor from a vehicle tank during dispensing of fuel into the vehicle tank, the vapor recovery system comprising a vapor recovery line for transporting fuel vapor, and detecting device for detecting a fuel vapor flow.
- a vapor recovery system When filling the tank of a motor vehicle, it is a common measure to recover the vapor escaping the tank when filling it with liquid fuel from a fuel pump unit.
- the liquid fuel is usually drawn from an underground fuel reservoir.
- the vapor recovery is performed by a system which is incorporated in the fuel pump unit, such that vapor of hydrocarbons are prevented from escaping to the environment outside the tank of the motor vehicle.
- Such a vapor recovery system typically consists of a vapor pump, a flow meter and a vapor inlet arranged at a fuel dispensing nozzle.
- the recovered vapor is returned to the underground fuel reservoir.
- the vapor pump draws fuel vapor from the tank of the motor vehicle, through the vapor flow meter and to the fuel reservoir.
- the flow meter constantly measures the vapor flow and compares the measured value with the flow of dispensed fuel.
- Adjusting means are connected to the flow meter and to the vapor pump, and are configured to control the rate of vapor flow so that it matches the flow rate of the dispensed fuel.
- vapor flow rate corresponds to the fuel rate, and, accordingly, there is a need for a reliable way to check that vapor flows into the vapor tank while dispensing fuel.
- EP-1,101,728, discloses a fuel dispensing system which includes vapor flow and hydrocarbon concentration sensors positioned in a vapor line, normally the vapor recovery line, to provide accurate feedback relating to the vapor flow rate and concentration of hydrocarbon laden vapor recovered by a vapor recovery system.
- the sensors provide diagnostic information about the vapor recovery process as well as ensure that the vapor recovery process is carried out in an efficient manner.
- U.S. Pat. No. 6,418,981 discloses a dispensing installation for fuel or other volatile liquids which comprises a storage tank, a pipe and a pump for dispensing fuel, a vapor recovery pipe and pump for recovering vapor and delivering it back to the tank, and a controller maintaining the vapor delivery rate approximately equal to the liquid delivery rate.
- the vapor delivery rate is constantly detected and compared with a value of the liquid delivery rate. If the result of the comparison is outside a predetermined range, an alarm is triggered in order to indicate a malfunction.
- a vapor recovery system for recovering fuel vapor from a vehicle tank during dispensing of fuel into the vehicle tank, the vapor recovery system comprising a vapor recovery line for transporting fuel vapor and detecting device for detecting a fuel vapor flow.
- the detecting device comprises a housing having a vapor inlet and a vapor outlet, a body movably arranged in the housing, and a sensor arranged to detect a location of the body within the housing, the body being configured to move from a first position in the housing to a second position in the housing in dependence of a rate of fuel vapor flow flowing from the vapor inlet to the vapor outlet.
- An advantage of certain implementations of the inventive system is that verification of the fuel vapor flow in the vapor recovery system is facilitated in a simple way. Since the body moves in dependence of a rate of fuel vapor flow, it is easy to verify a vapor mass flow by detecting the movement of the body.
- the body may be configured to allow, when the body is in the second position, a relatively higher rate of vapor flow from the vapor inlet to the vapor outlet, in comparison with the rate of vapor flow from the vapor inlet to the vapor outlet when the body is in the first position.
- the body may comprise a first side defining a first housing cavity at an inlet side of the housing, and a second side defining a second housing cavity at an outlet side of the housing.
- the body may comprise a channel extending from the first side of the body to the second side of the body.
- the housing may comprise a blocking member configured to at least partially obstruct the channel of the body when the body is in the second position.
- the body is not returned to its first position until the vapor flow rate is smaller than the vapor flow rate needed to move the body from its first position.
- the body may further comprise at least one groove configured to connect the first housing cavity with the second housing cavity when the body is in the second position.
- a bigger vapor flow is allowed to pass from the vapor inlet through the housing to the vapor outlet.
- the groove may be at least partially obstructed when the body is in the first position.
- An inner surface of the first housing cavity may at least partially obstruct the groove in the body when the body is in the first position.
- the body may comprise a damper configured to damp a movement of the body, which is advantageous in that any wear of the body will be reduced.
- the housing may further comprise a resilient member at least partially arranged between the body and the housing, for restraining a movement of the body.
- the body may comprise a magnet, the sensor being configured to detect the magnet, for facilitating a simple way of detecting a movement of the body.
- the body may be configured to move from the first position to the second position when a pressure in the first housing cavity exceeds a pressure in the second housing cavity by a specific value.
- a fuel dispensing unit for refueling vehicles comprising a vapor recovery system according to the above.
- the inventive fuel dispensing unit may incorporate any of the features described above in association with the inventive vapor recovery system, and has corresponding advantages.
- the fuel dispensing unit may further comprise a control unit connected to the sensor, the control unit being configured to monitor dispensing of fuel, and to provide a fault signal if the body is in the first position when fuel is dispensed. This is advantageous in that the control unit is able to stop the filling-up process if the fault signal is provided. Accordingly, little or no fuel vapor will escape to the environment.
- FIG. 1 is a schematic view of a fuel dispensing unit
- FIG. 2 is a schematic view of the detecting device when the body is in the first position
- FIG. 3 is a schematic view of the detecting device when the body is in the second position.
- FIG. 1 illustrates a fuel dispensing unit 1 with a vapor recovery system 2 for recovering vapor from a motor vehicle tank 9 during filling-up.
- the vapor recovery system 2 has vapor recovery line 6 with a vapor pump 3 , drawing vapor from the vehicle tank 9 to a fuel reservoir 10 .
- Detecting device 5 are arranged in the vapor recovery line 6 for detecting a fuel vapor flow during the filling-up process. If no fuel vapor flow can be detected the filling-up process will be terminated.
- the vapor recovery system 2 shown in FIG. 1 conveys a stream of fuel vapor V from a vapor inlet nozzle 32 at the vehicle tank 9 to the fuel reservoir 10 through the vapor recovery line 6 .
- a vapor pump 3 is arranged in the vapor recovery line 6 between the vapor inlet 32 and the fuel reservoir 10 .
- the vapor recovery line 6 has detecting device 5 located between the vapor pump 3 and the fuel reservoir 10 .
- Fuel is pumped from the fuel reservoir 10 through the fuel line 8 into the vehicle tank 9 by means of a fuel pump 7 that produces a fuel stream F.
- a control unit 4 is connected to the vapor pump 3 , the detecting device 5 and the fuel pump 7 .
- an implementation of the detecting device 5 is illustrated and comprises a housing 11 and a body 12 in a first position.
- the housing 11 is shaped as a cylinder with two different diameters and has a vapor inlet 13 and a vapor outlet 14 .
- the body 12 is moveable inside the housing 11 along axis A and separates the housing 11 into two sides, an inlet side 20 and an outlet side 22 .
- the inlet side 20 has a first housing cavity 21 and the outlet side 22 has a second housing cavity 23 .
- the body 12 comprises two projections 16 , 17 for keeping the body stable along a direction transversal to the axis A.
- the body 12 has a first side 18 facing the inlet side 20 and a second side 19 facing the outlet side 22 .
- the damper 28 comprises a first damper part 29 integrated in the body 12 and configured to fit into a second damper part 30 integrated in the housing 11 .
- the two damper parts 29 , 30 cooperate in a piston/cylinder like relationship.
- the second damper part 30 has two damper openings 33 , 33 ′ for preventing a rise of vacuum within the housing damper part 30 .
- Different sizes of the damper 28 give different damper characteristics.
- the damper opening 33 , 33 ′ may be omitted and be functionally replaced by a clearance between the damper parts 29 , 30 .
- a magnet 32 is connected to the first damper part 29 .
- a resilient member 31 is arranged between the second side 19 of the body 12 and the housing 11 , and biases the body 12 in a direction along the axis A, towards the inlet side 20 of the housing 11 .
- the resilient member 31 keeps the body 12 in the first position when the vapor recovery system 2 is not operated.
- a blocking member 25 is arranged in the second housing cavity 23 of the housing 11 .
- a channel 24 extends from the first side 18 of the body 12 to the second side 19 of the body 12 connecting the first housing cavity 21 with the second housing cavity 23 .
- the housing 11 has an inner surface 27 surrounding the body 12 .
- the body 12 has a groove 26 starting at the first side 18 and extends towards but not all the way to the second side 19 .
- a sensor 15 is connected to the housing 11 for detecting the magnet 32 .
- the sensor 15 is a reed switch or a Hall-effect sensor.
- FIG. 3 the detecting device 5 are illustrated with the body 12 in a second position.
- the body 12 inside the housing 11 When the fuel dispensing unit 1 is not in use, there is no vapor flow and the body 12 inside the housing 11 is located in the first position. In the first position, the inner surface 27 (shown in FIG. 2 ) obstructs the groove 26 in the body 12 and thereby prevents any vapor from flowing from the first housing cavity 21 via the groove 26 to the second housing cavity 23 .
- the body 12 is in the first position since no fuel vapor or only a leakage of fuel vapor flows through the housing 11 . A leakage flow of fuel vapor can always flow from the first housing cavity 21 via the body 12 to the second housing cavity 23 due to the channel 24 .
- the vapor pump 3 starts to pump fuel vapor from the vehicle tank 9 .
- the pressure in the first housing cavity 21 increases.
- the body 12 starts to move from the first position, along axis A, to the second position.
- the specific pressure value depends above all on the resilient member 31 and a cross-sectional flow area of the channel 24 . Accordingly, the resilient member 31 and the flow area of the channel 24 are selected so as to allow movement of the body 12 when the pressure in the first housing cavity 21 has increased to a level that represents a standard vapor flow rate.
- the inner diameter of the housing 11 is typically larger at the outlet side 22 in comparison with the inlet side 20 .
- the inner surface 27 of the housing 11 no longer obstructs the groove 26 , which thereby is uncovered and allows vapor to flow through the housing 11 .
- the blocking member 25 obstructs the channel 24 when the body 12 reaches the second position.
- the pressure difference between the first housing cavity 21 and the second housing cavity 23 has to decrease below the pressure difference value needed to move the body from the first to the second position.
- the sensor 15 detects whether the body 12 is located in the first position or in the second position and sends to the control unit 4 a signal indicating the body's 12 position.
- the control unit 4 is connected to the sensor 15 and controls the fuel pump 7 and the vapor pump 3 based on the result from the sensor 15 . If the body 12 is located in the second position during the filling-up process, the vapor recovery system 2 is considered to operate satisfactory and no further action is needed. If the body 12 is located in the first position during the filling-up process, the vapor recovery system 2 is considered to malfunction and the control unit 4 will terminate the filling-up process.
- the body 12 and the housing 11 are illustrated as being cylindrical, they may have any suitable shape. Moreover, the channel 24 should generally not be cantered in the body 12 .
Abstract
Description
- Under 35 U.S.C. § 119, this application claims the benefit of a foreign priority application filed in the European Patent Convention, serial number 07118611.8, filed Oct. 16, 2007, the entire contents of which are hereby incorporated by reference.
- The present invention relates to a vapor recovery system for recovering fuel vapor from a vehicle tank during dispensing of fuel into the vehicle tank, the vapor recovery system comprising a vapor recovery line for transporting fuel vapor, and detecting device for detecting a fuel vapor flow.
- When filling the tank of a motor vehicle, it is a common measure to recover the vapor escaping the tank when filling it with liquid fuel from a fuel pump unit. The liquid fuel is usually drawn from an underground fuel reservoir. The vapor recovery is performed by a system which is incorporated in the fuel pump unit, such that vapor of hydrocarbons are prevented from escaping to the environment outside the tank of the motor vehicle. Such a vapor recovery system typically consists of a vapor pump, a flow meter and a vapor inlet arranged at a fuel dispensing nozzle. The recovered vapor is returned to the underground fuel reservoir. The vapor pump draws fuel vapor from the tank of the motor vehicle, through the vapor flow meter and to the fuel reservoir. The flow meter constantly measures the vapor flow and compares the measured value with the flow of dispensed fuel. Adjusting means are connected to the flow meter and to the vapor pump, and are configured to control the rate of vapor flow so that it matches the flow rate of the dispensed fuel.
- It is important that the vapor flow rate corresponds to the fuel rate, and, accordingly, there is a need for a reliable way to check that vapor flows into the vapor tank while dispensing fuel.
- There are several techniques for monitoring a vapor flow.
- EP-1,101,728, for example, discloses a fuel dispensing system which includes vapor flow and hydrocarbon concentration sensors positioned in a vapor line, normally the vapor recovery line, to provide accurate feedback relating to the vapor flow rate and concentration of hydrocarbon laden vapor recovered by a vapor recovery system. The sensors provide diagnostic information about the vapor recovery process as well as ensure that the vapor recovery process is carried out in an efficient manner.
- U.S. Pat. No. 6,418,981 discloses a dispensing installation for fuel or other volatile liquids which comprises a storage tank, a pipe and a pump for dispensing fuel, a vapor recovery pipe and pump for recovering vapor and delivering it back to the tank, and a controller maintaining the vapor delivery rate approximately equal to the liquid delivery rate. In order to check that the vapor recovery system is operating correctly, the vapor delivery rate is constantly detected and compared with a value of the liquid delivery rate. If the result of the comparison is outside a predetermined range, an alarm is triggered in order to indicate a malfunction.
- According to a first aspect of the invention a vapor recovery system is provided for recovering fuel vapor from a vehicle tank during dispensing of fuel into the vehicle tank, the vapor recovery system comprising a vapor recovery line for transporting fuel vapor and detecting device for detecting a fuel vapor flow. The detecting device comprises a housing having a vapor inlet and a vapor outlet, a body movably arranged in the housing, and a sensor arranged to detect a location of the body within the housing, the body being configured to move from a first position in the housing to a second position in the housing in dependence of a rate of fuel vapor flow flowing from the vapor inlet to the vapor outlet. An advantage of certain implementations of the inventive system is that verification of the fuel vapor flow in the vapor recovery system is facilitated in a simple way. Since the body moves in dependence of a rate of fuel vapor flow, it is easy to verify a vapor mass flow by detecting the movement of the body.
- The body may be configured to allow, when the body is in the second position, a relatively higher rate of vapor flow from the vapor inlet to the vapor outlet, in comparison with the rate of vapor flow from the vapor inlet to the vapor outlet when the body is in the first position.
- The body may comprise a first side defining a first housing cavity at an inlet side of the housing, and a second side defining a second housing cavity at an outlet side of the housing.
- The body may comprise a channel extending from the first side of the body to the second side of the body.
- The housing may comprise a blocking member configured to at least partially obstruct the channel of the body when the body is in the second position. In this implementation, the body is not returned to its first position until the vapor flow rate is smaller than the vapor flow rate needed to move the body from its first position.
- The body may further comprise at least one groove configured to connect the first housing cavity with the second housing cavity when the body is in the second position. In this implementation, a bigger vapor flow is allowed to pass from the vapor inlet through the housing to the vapor outlet.
- The groove may be at least partially obstructed when the body is in the first position.
- An inner surface of the first housing cavity may at least partially obstruct the groove in the body when the body is in the first position.
- The body may comprise a damper configured to damp a movement of the body, which is advantageous in that any wear of the body will be reduced.
- The housing may further comprise a resilient member at least partially arranged between the body and the housing, for restraining a movement of the body.
- The body may comprise a magnet, the sensor being configured to detect the magnet, for facilitating a simple way of detecting a movement of the body.
- The body may be configured to move from the first position to the second position when a pressure in the first housing cavity exceeds a pressure in the second housing cavity by a specific value.
- According to another aspect of the invention, a fuel dispensing unit for refueling vehicles is provided comprising a vapor recovery system according to the above. The inventive fuel dispensing unit may incorporate any of the features described above in association with the inventive vapor recovery system, and has corresponding advantages.
- The fuel dispensing unit may further comprise a control unit connected to the sensor, the control unit being configured to monitor dispensing of fuel, and to provide a fault signal if the body is in the first position when fuel is dispensed. This is advantageous in that the control unit is able to stop the filling-up process if the fault signal is provided. Accordingly, little or no fuel vapor will escape to the environment.
- Embodiments of the present invention will now be described, by way of example, with reference to the accompanying schematic drawings, in which
-
FIG. 1 is a schematic view of a fuel dispensing unit, -
FIG. 2 is a schematic view of the detecting device when the body is in the first position, and -
FIG. 3 is a schematic view of the detecting device when the body is in the second position. -
FIG. 1 illustrates afuel dispensing unit 1 with avapor recovery system 2 for recovering vapor from a motor vehicle tank 9 during filling-up. Thevapor recovery system 2 hasvapor recovery line 6 with avapor pump 3, drawing vapor from the vehicle tank 9 to afuel reservoir 10. Detectingdevice 5 are arranged in thevapor recovery line 6 for detecting a fuel vapor flow during the filling-up process. If no fuel vapor flow can be detected the filling-up process will be terminated. - The
vapor recovery system 2 shown inFIG. 1 conveys a stream of fuel vapor V from avapor inlet nozzle 32 at the vehicle tank 9 to thefuel reservoir 10 through thevapor recovery line 6. Avapor pump 3 is arranged in thevapor recovery line 6 between thevapor inlet 32 and thefuel reservoir 10. Thevapor recovery line 6 has detectingdevice 5 located between thevapor pump 3 and thefuel reservoir 10. Fuel is pumped from thefuel reservoir 10 through thefuel line 8 into the vehicle tank 9 by means of afuel pump 7 that produces a fuel stream F.A control unit 4 is connected to thevapor pump 3, the detectingdevice 5 and thefuel pump 7. - In
FIG. 2 , an implementation of the detectingdevice 5 is illustrated and comprises ahousing 11 and abody 12 in a first position. Thehousing 11 is shaped as a cylinder with two different diameters and has avapor inlet 13 and avapor outlet 14. Thebody 12 is moveable inside thehousing 11 along axis A and separates thehousing 11 into two sides, aninlet side 20 and anoutlet side 22. Theinlet side 20 has afirst housing cavity 21 and theoutlet side 22 has asecond housing cavity 23. Thebody 12 comprises twoprojections body 12 has afirst side 18 facing theinlet side 20 and asecond side 19 facing theoutlet side 22. On thefirst side 18 of the body 12 adamper 28 is arranged. Thedamper 28 comprises afirst damper part 29 integrated in thebody 12 and configured to fit into asecond damper part 30 integrated in thehousing 11. The twodamper parts second damper part 30 has twodamper openings housing damper part 30. Different sizes of thedamper 28 give different damper characteristics. Of course, the damper opening 33, 33′ may be omitted and be functionally replaced by a clearance between thedamper parts magnet 32 is connected to thefirst damper part 29. Aresilient member 31 is arranged between thesecond side 19 of thebody 12 and thehousing 11, and biases thebody 12 in a direction along the axis A, towards theinlet side 20 of thehousing 11. Theresilient member 31 keeps thebody 12 in the first position when thevapor recovery system 2 is not operated. In thesecond housing cavity 23 of the housing 11 a blockingmember 25 is arranged. Achannel 24 extends from thefirst side 18 of thebody 12 to thesecond side 19 of thebody 12 connecting thefirst housing cavity 21 with thesecond housing cavity 23. Thehousing 11 has aninner surface 27 surrounding thebody 12. Thebody 12 has agroove 26 starting at thefirst side 18 and extends towards but not all the way to thesecond side 19. Asensor 15 is connected to thehousing 11 for detecting themagnet 32. Preferably, thesensor 15 is a reed switch or a Hall-effect sensor. - In
FIG. 3 the detectingdevice 5 are illustrated with thebody 12 in a second position. - When the
fuel dispensing unit 1 is not in use, there is no vapor flow and thebody 12 inside thehousing 11 is located in the first position. In the first position, the inner surface 27 (shown inFIG. 2 ) obstructs thegroove 26 in thebody 12 and thereby prevents any vapor from flowing from thefirst housing cavity 21 via thegroove 26 to thesecond housing cavity 23. Thebody 12 is in the first position since no fuel vapor or only a leakage of fuel vapor flows through thehousing 11. A leakage flow of fuel vapor can always flow from thefirst housing cavity 21 via thebody 12 to thesecond housing cavity 23 due to thechannel 24. - During the filling-up of a vehicle, the
vapor pump 3 starts to pump fuel vapor from the vehicle tank 9. When vapor flows through thevapor inlet 13 of thehousing 11, the pressure in thefirst housing cavity 21 increases. At a certain point, where the pressure in thefirst housing cavity 21 exceeds the pressure in thesecond housing cavity 23 by a specific value, thebody 12 starts to move from the first position, along axis A, to the second position. The specific pressure value depends above all on theresilient member 31 and a cross-sectional flow area of thechannel 24. Accordingly, theresilient member 31 and the flow area of thechannel 24 are selected so as to allow movement of thebody 12 when the pressure in thefirst housing cavity 21 has increased to a level that represents a standard vapor flow rate. The inner diameter of thehousing 11 is typically larger at theoutlet side 22 in comparison with theinlet side 20. Thus, when the body is located in the second position, theinner surface 27 of thehousing 11 no longer obstructs thegroove 26, which thereby is uncovered and allows vapor to flow through thehousing 11. - The blocking
member 25 obstructs thechannel 24 when thebody 12 reaches the second position. As a consequence of the channel obstruction, the pressure difference between thefirst housing cavity 21 and thesecond housing cavity 23 has to decrease below the pressure difference value needed to move the body from the first to the second position. - Since the
magnet 32 is connected to thefirst damper part 29 which is integrated with thebody 12, thesensor 15 detects whether thebody 12 is located in the first position or in the second position and sends to the control unit 4 a signal indicating the body's 12 position. Thecontrol unit 4 is connected to thesensor 15 and controls thefuel pump 7 and thevapor pump 3 based on the result from thesensor 15. If thebody 12 is located in the second position during the filling-up process, thevapor recovery system 2 is considered to operate satisfactory and no further action is needed. If thebody 12 is located in the first position during the filling-up process, thevapor recovery system 2 is considered to malfunction and thecontrol unit 4 will terminate the filling-up process. - Even if the
body 12 and thehousing 11 are illustrated as being cylindrical, they may have any suitable shape. Moreover, thechannel 24 should generally not be cantered in thebody 12.
Claims (14)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07118611A EP2050711B1 (en) | 2007-10-16 | 2007-10-16 | Vapour recovery detection means |
EP07118611 | 2007-10-16 | ||
EP07118611.8 | 2007-10-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20090101229A1 true US20090101229A1 (en) | 2009-04-23 |
US8196617B2 US8196617B2 (en) | 2012-06-12 |
Family
ID=39130334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/252,535 Active 2031-02-14 US8196617B2 (en) | 2007-10-16 | 2008-10-16 | Vapor recovery detection means |
Country Status (5)
Country | Link |
---|---|
US (1) | US8196617B2 (en) |
EP (1) | EP2050711B1 (en) |
AT (1) | ATE471914T1 (en) |
DE (1) | DE602007007337D1 (en) |
ES (1) | ES2347087T3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2347087T3 (en) | 2007-10-16 | 2010-10-25 | Dresser Wayne Aktiebolag | MEANS OF DETECTION OF STEAM RECOVERY. |
NO334661B1 (en) * | 2012-08-23 | 2014-05-12 | Kverneland Group Operations Norway As | Valve for detecting hydraulic system status |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6334470B2 (en) * | 1999-03-19 | 2002-01-01 | Healy Systems, Inc. | Coaxial vapor flow indicator with pump speed control |
US6418981B1 (en) * | 1999-07-23 | 2002-07-16 | Tokheim Services France | Method of checking that a system for recovering vapour emitted in a fuel dispensing installation is operating correctly and installation enabling said method to be implemented |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6418983B1 (en) | 1999-11-17 | 2002-07-16 | Gilbasco Inc. | Vapor flow and hydrocarbon concentration sensor for improved vapor recovery in fuel dispensers |
ES2347087T3 (en) | 2007-10-16 | 2010-10-25 | Dresser Wayne Aktiebolag | MEANS OF DETECTION OF STEAM RECOVERY. |
-
2007
- 2007-10-16 ES ES07118611T patent/ES2347087T3/en active Active
- 2007-10-16 DE DE602007007337T patent/DE602007007337D1/en active Active
- 2007-10-16 EP EP07118611A patent/EP2050711B1/en not_active Not-in-force
- 2007-10-16 AT AT07118611T patent/ATE471914T1/en not_active IP Right Cessation
-
2008
- 2008-10-16 US US12/252,535 patent/US8196617B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6334470B2 (en) * | 1999-03-19 | 2002-01-01 | Healy Systems, Inc. | Coaxial vapor flow indicator with pump speed control |
US6418981B1 (en) * | 1999-07-23 | 2002-07-16 | Tokheim Services France | Method of checking that a system for recovering vapour emitted in a fuel dispensing installation is operating correctly and installation enabling said method to be implemented |
Also Published As
Publication number | Publication date |
---|---|
ES2347087T3 (en) | 2010-10-25 |
ATE471914T1 (en) | 2010-07-15 |
US8196617B2 (en) | 2012-06-12 |
EP2050711B1 (en) | 2010-06-23 |
EP2050711A1 (en) | 2009-04-22 |
DE602007007337D1 (en) | 2010-08-05 |
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